All categories

3 years ago

3a+4b=7ab Find the mistake and solve

Mathematics

1 answer:

alekssr [168]3 years ago

7 0

Answer:

The mistake is adding and there is no way to solve if you have to add

Step-by-step explanation:

You might be interested in

Factor the expression P^4+3p^3-10p^2

bonufazy [111]

Answer:

$p^2(p+5)(p-2)$

Step-by-step explanation:

To begin factoring the expression $p^4+3p^3-10p^2$ , we use the GCF or greatest common factor. The greatest common factor is the greatest number that will divide into two or more values. We start to find it by factoring each term:

$p^4=p*p*p*p$

$3p^3: 3*p*p*p$

$-10p^2: -10*p*p$

Remember -10 can factor into smaller numbers but since it doesn't have common factors with the others, we've chosen to leave it as -10.

We notice the only common factors bare p*p or $p^2$ .

We write in the form p^2(____+_____+_____). We find the inside of the parenthesis by dividing each term by p^2.

$\frac{p^4}{p^2} =p^2$

$\frac{3p^3}{p^2} =3p$

$\frac{-10p^2}{p^2}=-10$

$p^2(p^2+3p-10)$ .

We are not finished yet. We have a trinomial (3 terms) which also factors. We factor by splitting the middle term 3p into factors of -10 which add to 3.

--10 = 5 * -2

3p= 5p +-2p

We write $p^2(p+5)(p-2)$ .

5 0

4 years ago

if event A has a 30% chance of occurring and event B has a 45% chance of occurring, what is the probability that event A or even

Marysya12 [62]

The answer is 75%. This is because the 'or' rule for probability, the one we use when trying to determine P(A) or P(B), is to add the two probabilities. This means that we just need to add 30% and 45%, which gives us 75%.
I hope this helps!

3 0

3 years ago

Pliz ans this question

andrey2020 [161]

Answer:

Hello,

- 6 (x - 2)² - 1

Step-by-step explanation:

- 6 x² + 24 x - 25 = - 6 (x² - 4 x) - 25

= - 6 ( (x - 2)² - 4) - 25

= - 6 (x - 2)² + 24 - 25

= - 6 (x - 2)² - 1

5 0

3 years ago

Read 2 more answers

Write the statement "x is no more than 42" as a mathematical inequality.

77julia77 [94]

Answer:

x≤ 42

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The points (2, 5) and (6,-3) fall on a particular line. What is its equation in slope-intercept form?

Pachacha [2.7K]

Answer:

y = -2x + 9

Step-by-step explanation:

slope intercept form : y = mx + b

where m = slope and b = y intercept

first let's find the slope

slope formula :

$m = ( \frac{y2 - y1}{x2 - x1} )$

where the x and y values are derived from the given points

here we are given (2,5) and (6,-3)

(x1,y1) = (2,5) so x1 = 2 and y1 = 5

(x2,y2) = (6,-3) so x2 = 6 and y2 = -3

we now plug these values into the formula

recall formula

$m= ( \frac{y2 - y1}{x2 - x1} )$

plug in x1 = 2, y1 = 5, x2 = 6 and y2 = -3

m = (-3 - 5) / ( 6 - 2 )

m = (-8)/(4)

m = -2

the slope is -2

now to find the y intercept we plug in the slope and the x and y value of a given point into slope intercept form and solve for b

y = mx + b

given point : (2,5) x = 2 , y = 5, m = -2

5 = -2(2) + b

5 = -4 + b

9 = b

so the equation would be y = -2x + 9

6 0

3 years ago